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Groups > comp.lang.java.programmer > #10475

Re: 64-bit gotcha

From Roedy Green <see_website@mindprod.com.invalid>
Newsgroups comp.lang.java.programmer
Subject Re: 64-bit gotcha
Date 2011-12-03 18:17 -0800
Organization Canadian Mind Products
Message-ID <uelld71ch9bp1khvg5s1br1bo1f9ji4s66@4ax.com> (permalink)
References <vvujd71j7k73s1m61bu10eol0ebtn4iem0@4ax.com> <4eda8488$0$287$14726298@news.sunsite.dk> <xbKdnW4-I_26AUfTnZ2dnUVZ_qqdnZ2d@posted.palinacquisition>

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On Sat, 03 Dec 2011 14:01:10 -0800, Peter Duniho
<NpOeStPeAdM@NnOwSlPiAnMk.com> wrote, quoted or indirectly quoted
someone who said :

>It's a fair question to ask why Microsoft didn't do the same for 32-bit 
>DLLs executing in 64-bit processes.
>
>I don't personally have the answer.

The reason might be the decline of assembler.  Upgrading 16 bit DLLs
to 32 bit written in assembler would be a mighty undertaking.
Upgrading a 32-bit C program to 64-bit would be fairly
straightforward, Doing the same for Java is transparent. Further,
providing a bridge would just delay the introduction of 64 bit.

I am glad I was born early enough to have fun seeing what you could
pull off in assembler in 1K, pushing the limits of what was possible
with a given CPU.  I am even old enough to have used two generations
of programming before that, plug cords and machine hex.

I don't think I would enjoy programming today without some
understanding of what goes on at the chip level and inside the OS.
I would hope every CS student would write at least one device driver
to get a feel for what an OS does for a living.
-- 
Roedy Green Canadian Mind Products
http://mindprod.com
For me, the appeal of computer programming is that
even though I am quite a klutz,
I can still produce something, in a sense
perfect, because the computer gives me as many
chances as I please to get it right.
 

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Thread

64-bit gotcha Roedy Green <see_website@mindprod.com.invalid> - 2011-12-03 02:47 -0800
  Re: 64-bit gotcha Arne Vajhøj <arne@vajhoej.dk> - 2011-12-03 15:20 -0500
    Re: 64-bit gotcha Peter Duniho <NpOeStPeAdM@NnOwSlPiAnMk.com> - 2011-12-03 14:01 -0800
      Re: 64-bit gotcha Roedy Green <see_website@mindprod.com.invalid> - 2011-12-03 18:17 -0800
        Re: 64-bit gotcha Martin Gregorie <martin@address-in-sig.invalid> - 2011-12-04 12:06 +0000
          Re: 64-bit gotcha Jeff Higgins <jeff@invalid.invalid> - 2011-12-04 08:57 -0500
            Re: 64-bit gotcha Jeff Higgins <jeff@invalid.invalid> - 2012-02-25 19:15 -0500
              Re: 64-bit gotcha Martin Gregorie <martin@address-in-sig.invalid> - 2012-02-26 00:53 +0000
                Re: 64-bit gotcha Jeff Higgins <jeff@invalid.invalid> - 2012-02-25 20:26 -0500
          Re: 64-bit gotcha Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2011-12-04 10:04 -0400
        Re: 64-bit gotcha Arne Vajhøj <arne@vajhoej.dk> - 2012-03-12 19:50 -0400
      Re: 64-bit gotcha Travers Naran <tnaran@gmail.com> - 2011-12-04 09:17 -0800
      Re: 64-bit gotcha Joshua Cranmer <Pidgeot18@verizon.invalid> - 2011-12-04 18:33 -0600
        Re: 64-bit gotcha Peter Duniho <NpOeStPeAdM@NnOwSlPiAnMk.com> - 2011-12-04 16:56 -0800
        Re: 64-bit gotcha Arne Vajhøj <arne@vajhoej.dk> - 2012-03-12 19:53 -0400
      Re: 64-bit gotcha Arne Vajhøj <arne@vajhoej.dk> - 2012-03-12 19:49 -0400

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